LiPo Battery
Power Untethered
- Photon 2 needs 3.3v to function
- DC hobby motors require 1-3v, but will handle up to 12v
- Best solution is to use LiPo battery which operates at 3.7v
Lithium-Ion Polymer Battery (LiPo)
Lithium-Ion Polymer Battery (LiPo)
- Operates at 3.7v (many other voltages available)
- Rechargeable
- Has a standard 2-pin JST-PH connector (also on Photon 2)
- Lightweight
LiPo Capacity
- Besides voltage, batteries have a capacity rating
- Capacity is measured in Amp hours
- Amp hours are “amount of current the battery can supply for an hour before it is drained”
- Our batteries are 1800 mAh
- 1800 milliamp hours = 1.8 Amp hours
- Increased capacity –> increased size –> increased cost
LiPo Special Cautions
- LiPo (like batteries in your cell phone) are generally safe
- However, please follow a few cautions:
- Only charge with LiPo charger
- Do not expose battery to water
- Do not puncture
- If punctured or swells, stop using immediately
- Please please do not throw battery in the trash–it contains toxic metals that pollute the environment
- You can drop the battery off at a recycling center in your area or at a
LiPo and Photon 2
- Photon 2 has built-in charging port for LiPo batteries
- Connect Photon 2 to USB in order to charge battery
New Photon 2 Pins
EN is a basically on/off for the Photon 2. Connect to GND to turn off Photon 2 (and save battery power)Li+ is internally-connected to the positive (+3.7v) of the battery
References